The Samsung advert shown in Italy ends with the dramatic placing of a Galaxy into a glass of water. Which looks impressive.

Consumer Reports performs an immersion test when a manufacturer claims that its product is water-resistant and the Galaxy S7 Active failed.

While the phone performed extremely well in other tests. Consumer Reports is refusing to recommend it because the water resistant claim is incorrect.

Samsung says its phone follows an engineering standard called IP68 that covers both dust- and water-resistance, and that the phone is designed to survive immersion in five feet of water for 30 minutes.

Consumer Reports placed a Galaxy S7 Active in a water tank pressurised to 2.12 pounds-per-square-inch, the equivalent of just under five feet of water, and set a timer for 30 minutes. When it removed the phone, the screen was obscured by green lines, and tiny bubbles were visible in the lenses of the front- and rear-facing cameras. The touchscreen was borked.

A second Galaxy S7 Active also failed the same test and neither phone worked properly again.

Samsung says it has received “very few complaints” about this problem, and that in all cases, the phones were covered under warranty. A spokesSamsung sang:

“The Samsung Galaxy S7 active device is one of the most rugged phones to date and is highly resistant to scratches and IP68 certified. There may be an off-chance that a defective device is not as watertight as it should be.”

The company says it is investigating the matter.